Advice for GCSE english lit and lang

For context I do edexcel english. In my year 11 mocks i got a 6 in english language and a 7 in english literature. these were the full 4 papers. i got high marks in the first questions in the language paper but dropped them all in creative writing (mostly) and transactional(but still got a 7 in paper2) . In english literature, i get high marks in some questions like unseen poetry, but marked down in others.
So my question is how can i improve in these? Obviously, i know to do practice questions but i'm just scared that focussing too much on one thing will drop my grade in other parts so how can i overcome this?